Nautilus House by Javier Senosiain

Organic architecture with a nautilus shell design.I was reading about bio- architecture at 
http://www.blogonsmog.com/student-saturday/bio-architecture-designing-with-nature-in-mind.html :

"Several decades ago, a few creative thinkers started redefining the traditional idea of home.  From coast to coast, people started looking at their environment and began building with eco-inspired homes. Hawaii’s famous Onion House is one popular example of a creative idea, now a national landmark and a beautiful testimonial to shift toward bio-architecture.  Designed in tune with the curves of an onion, with a layered feel that mirrors the lucid skins of an onion, the house is a beautiful demonstration of the possibilities when nature if design icon.

Further down south in Isla Mujeres, Mexico, the Shell House takes the idea literally by designing a house that looks like a magnified shell.  Senosian Arquitectos has the same idea with their design called “The Nautilus”.  This Mexico-based design firm went beyond a shell exterior and designed an entire home patterned after a shell with a winding organic interior.  

And I researched the Nautilus House and found an amazing shell design house.

Senosiain Arquitectos' Nautilus was built with a 2" ferrocement shell and the material concretizes the idea making it true.

The clients, a young couple with two children who after living in a conventional home wanted to change to one integrated to nature. The land, with upward topography, is limited to the south, north and east by high buildings. The west adjoining provides a wide view of the mountains. The model work generated numberless changes until achieving the volume needed by the construction: the Nautilus. The metaphor was to feel like an internal inhabitant of a snail, like a mollusk moving from one chamber to another, like a symbiotic dweller of a huge fossil maternal cloister. This home social life flows inside the Nautilus without any division, a harmonic area in three dimensions where you can notice the continuous dynamic of the fourth dimension when moving in spiral over the stairs with a feeling of floating over the vegetation.

here are the mind blowing pictures: